1. Preheat oven to 400 degrees. Sprinkle chicken evenly with seasoning mix. Place 1/2 cup of the potatoes on center of each of four large sheets of heavy duty foil. Top with 1 chicken breast, 1/4 cup of the cheese and 2 Tbsp. of the salsa.

2. Bring up foil sides. Double fold top and both ends to seal each packet, leaving room for heat circulation inside. Place in single layer in 15x10x1 inch baking pan.

3. Bake 30 to 35 minutes until chicken is cooked through and potatoes are tender. Remove packets from oven. Let stand 5 minutes. Cut slits in foil with sharp knife to release steam before opening. Top each with 1 Tbsp. of sour cream.